No audio or one way audio issue Zoiper

1.
In case you are experiencing no audio or one way audio issue, please make sure that Zoiper is allowed to use the microphone on your device.

Open iPhone's "Settings"->"Privacy" and allow Zoiper to use the microphone.

2.
If the microphone is enabled, but still there is one-way audio, or no audio at all, please try to disable or enable STUN according to its current state.

STUN is located in Zoiper -> Settings -> Accounts -> VirtualGlobalPhone account -> Network Settings.

3.
If using Zoiper with WiFi, please make sure that the routing device is not blocking ports used by Zoiper. The default ports used by Zoiper are:

SIP port is 5060
IAX port is 4569 UDP
RTP port is 8000 and above UDP

Default STUN vallues:
Server hostname /IP :stun.zoiper.com
Port : 3478 UDP/TCP
Refresh period : 30

  • oneway, audio issue
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